CN219932519U - Cross-flow wind wheel and cross-flow fan - Google Patents
Cross-flow wind wheel and cross-flow fan Download PDFInfo
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- CN219932519U CN219932519U CN202321338316.2U CN202321338316U CN219932519U CN 219932519 U CN219932519 U CN 219932519U CN 202321338316 U CN202321338316 U CN 202321338316U CN 219932519 U CN219932519 U CN 219932519U
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- 229910000831 Steel Inorganic materials 0.000 claims description 9
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- 230000000694 effects Effects 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 206010024796 Logorrhoea Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of air conditioning equipment, in particular to a cross-flow wind wheel and a cross-flow fan. The device comprises a wheel disc and a plurality of blades arranged on one side disc surface of the wheel disc along the same circumferential line, wherein the blades are obliquely arranged on the wheel disc, and an oblique air inlet/outlet channel is formed between the adjacent blades; the inner end edge of the blade is provided with tooth grooves at the inner side of the air inlet/outlet channel, and a plurality of tooth grooves are longitudinally arranged. In the scheme, the blades on the cross-flow wind wheel are obliquely arranged, so that after air is taken in, the wind flow is in an arc or parabolic track, the wind flow can quickly approach to the air outlet channel, the vortex is closer to the air outlet channel, the air outlet efficiency is improved, and the air distribution in unit time is improved; the inner ends of the blades are provided with tooth grooves, when wind flows are about to enter the inside of the blades, as the wind flows are close to the tooth grooves, the partial wind flows have no blade effect, the stall is first formed into vortex, and the rear wind flows form through flows to be blown to the air outlet channel, so that the wind circulation can be effectively reduced, and the air outlet efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of air conditioning equipment, in particular to a cross-flow wind wheel and a cross-flow fan.
Background
The cross-flow fan blade is a special fan, is one of important accessories of an air conditioner, is formed by connecting and processing a plurality of wind wheels, is generally in a tower column shape, and also has a large cylindrical shape, and the blown wind is concentrated to form relay type air flow transmission.
The wind wheel of the cross-flow fan is also called an impeller which is multi-blade and long cylindrical, and is provided with blades with forward multi-wing shapes. When the impeller rotates, air flow enters the blade grating from the opening position of the impeller, passes through the inside of the impeller, and is discharged into the volute from the blade grating on the other side, so that working air flow is formed. The flow of the air flow in the impeller is complex, the air flow velocity field is unstable, and a vortex exists in the impeller, and the center of the vortex is positioned near the volute tongue. The existence of the vortex can make the output end of the impeller generate a circulation flow, and the airflow streamline in the impeller is circular arc outside the vortex.
Therefore, the flow velocity at each point on the outer circumference of the impeller is not uniform, and the closer to the scroll, the greater the velocity, and the closer to the scroll, the smaller the velocity. The air flow speed and pressure at the air outlet of the fan are not uniform, so the flow coefficient and the pressure coefficient of the fan are average values.
The impeller material is typically an aluminum alloy or engineering plastic. The aluminum alloy impeller has high strength, light weight and high temperature resistance, and can keep long-term stable operation without deformation; the plastic impeller is formed by injection molding of a mold and ultrasonic welding, and is generally used for occasions with lower rotating speed and larger diameter.
The blades of the existing through-flow fan blades are generally vertically arranged on the wheel disc, a vertical air inlet channel or an air outlet channel is formed between every two adjacent vertical blades, after the two adjacent air inlet channels are used for air inlet, the air is blown to the middle part of the fan blade, and the turbulence between the two adjacent air inlet channels is serious, so that the air quantity of the medium-gauge medium-moment arrangement mode is general, and the noise is obvious after the medium-gauge medium-moment arrangement mode is used for a long time.
Disclosure of Invention
In order to solve the above problems, a first object of the present utility model is to provide a cross flow wind turbine, which can improve the air output of the cross flow wind turbine and reduce noise; the second object of the present utility model is to provide a cross-flow fan having the above cross-flow wind wheel.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a cross flow wind wheel, includes the rim plate to and set up the multi-disc blade on rim plate one side quotation along same circumference line, its characterized in that: the blades are obliquely arranged on the wheel disc, and an oblique air inlet/outlet channel is formed between the adjacent blades; the inner end edge of the blade is provided with tooth grooves at the inner side of the air inlet/outlet channel, and a plurality of tooth grooves are longitudinally arranged.
In the technical scheme, the blades on the cross-flow wind wheel are obliquely arranged, so that after air is taken in, the wind flow is in an arc or parabolic track, the wind can quickly approach to the air outlet channel, the vortex is closer to the air outlet channel, the air outlet efficiency is improved, and the air distribution in unit time is improved; in addition, the inclined air inlet channels enable the air flows to enter the cross-flow fan blades and then interfere with each other little, so that the air flow loss can be reduced, and the air output is further improved. In addition, a tooth slot is formed at the inner end of each blade, when wind flow is about to enter the inside of each blade, as the wind flow is close to the tooth slot, the wind flow does not have the effect of the blades, stalls and forms vortex at first, and the wind flow at the back forms through flow to be blown to an air outlet channel, so that the wind circulation can be effectively reduced, and the air outlet efficiency is improved.
Preferably, the plurality of blades are arranged on the wheel disc in a regular inclined manner. In the technical scheme, the blades are obliquely arranged on the wheel disc in a regular manner, so that the air quantity passing through each air inlet channel and each air outlet channel is uniform, and the service life of the wind wheel is prolonged.
Preferably, the inclination angle of the blade is 3-5 degrees. In this technical scheme, limited the inclination of blade, prevent that blade inclination is little, the vortex is still serious and the wind flow track is inwards unobvious after the air inlet, simultaneously, prevent that blade inclination is too big, the structure is unstable.
Preferably, a plurality of tooth slots are longitudinally and regularly arranged at the inner ends of the blades. In the technical scheme, the plurality of tooth grooves are longitudinally and regularly arranged at the inner ends of the blades, so that the upward and downward wind flows passing through the tooth grooves of the blades can be uniformly stalled, and the structural stability of the blades is maintained.
Preferably, the cross section of each tooth slot is square, and a wide wall is formed between every two adjacent tooth slots. In this technical scheme, when the through-flow is gone out by the air-out passageway, the wide wall can stir partial wind flow garrulous, noise abatement.
Preferably, the slot length of the slot is equal to the length of the wide wall. In this technical scheme, the notch length of tooth's socket with the length of wide wall equals can further make blade structure more stable, makes the effect that wide wall stirs garrulous wind flow obvious simultaneously, effective noise abatement.
Preferably, the cambered surface between the side wall and the bottom surface of the tooth groove is in transition. In the technical scheme, the structural stability of the tooth slot is improved, and the service life of the blade is prolonged.
The utility model provides a cross-flow fan, includes casing, motor, steel axle dish and rubber end dish, is formed with the wind channel in the casing, and air intake and air outlet are formed respectively at the both ends in wind channel, and the motor is installed on steel axle dish, its characterized in that: the cross-flow wind wheel comprises a steel shaft disc, a rubber end disc, a plurality of cross-flow wind wheels, a plurality of air channels and a plurality of air guide grooves.
Drawings
Fig. 1 is a schematic perspective view of a cross flow wind wheel.
Fig. 2 is a schematic perspective view of a blade.
Fig. 3 is a schematic view of the inclination angle arrangement of the blades.
Fig. 4 is a schematic perspective view of a cross-flow fan.
FIG. 5 is a schematic view of the wind flow in a cross-flow fan.
Fig. 6 is another view of fig. 4.
Description of the embodiments
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
The cross-flow wind wheel shown in fig. 1-2 comprises a wheel disc 1 and a plurality of blades 2 arranged on one side disc surface of the wheel disc 1 along the same circumferential line, wherein the blades 2 are obliquely arranged on the wheel disc 1, and an oblique air inlet/outlet channel is formed between adjacent blades 2; the inner end edge of the blade 2 is provided with tooth grooves 3 at the inner side of the air inlet/outlet channel, and the tooth grooves 3 are longitudinally arranged in a plurality.
In the above technical scheme, the blades 2 on the cross-flow wind wheel are obliquely arranged, so that after air is taken in, the wind flow is in an arc or parabolic track, and can quickly approach the air outlet channel 200, and the vortex is closer to the air outlet channel, thereby improving the air outlet efficiency and improving the air distribution in unit time; in addition, the inclined air inlet channel 100 ensures that the air flows have small interference after entering the interior of the cross-flow fan blade, thereby reducing the air flow loss and further improving the air output. In addition, set up tooth's socket 3 at the inner of blade 2, when the wind flow is about to get into the fan blade inside, because be close to tooth's socket 3, this partial wind flow does not have the blade effect, stall and first form the vortex, and the wind flow of back then forms the through-flow and blows to air-out passageway 200, can effectively reduce the wind circulation, improves air-out efficiency.
Further, the plurality of blades 2 are arranged on the wheel disc 1 in a regular inclined manner. In the technical scheme, the blades 2 are obliquely arranged on the wheel disc 1 in a regular manner, so that the air quantity passing through each air inlet channel and each air outlet channel is uniform, and the service life of the wind wheel is prolonged. Further, the inclination angle of the blade 2 is 3-5 °. As shown in fig. 3, θ is an inclination angle, and this technical solution defines an inclination angle of the blade 2, prevents that the inclination angle of the blade 2 is small, and after intake air, turbulence is still serious and wind flow track is not obvious inwards, and simultaneously, prevents that the inclination angle of the blade 2 is too large, and the structure is unstable.
Further, a plurality of tooth grooves 3 are regularly arranged longitudinally at the inner end of the blade 2. In the technical scheme, the plurality of tooth grooves 3 are longitudinally and regularly arranged at the inner ends of the blades 2, so that the up-and-down wind flow passing through the tooth grooves of the blades can be uniformly stalled, and the structural stability of the blades 2 is maintained.
Further, the cross section of each tooth slot 3 is square, and a wide wall 4 is formed between every two adjacent tooth slots 3. In this technical solution, when the through-flow goes out from the air outlet passage 200, the wide wall 4 can stir up part of the air flow, reducing noise.
Further, the slot length of the slot 3 is equal to the length of the wide wall 4. In this technical scheme, the notch length of tooth's socket 3 with the length of wide wall 4 is equal can further make blade 2 structure more stable, makes the effect that wide wall 4 stirs garrulous wind flow obvious simultaneously, effective noise abatement.
Further, the cambered surface between the side wall and the bottom surface of the tooth groove 3 is in transition. In the technical scheme, the structural stability of the tooth slot 3 is improved, and the service life of the blade 2 is prolonged.
In this embodiment, aiming at the problems of low air quantity and general efficiency of the existing through-flow fan blade, the above scheme is that a plurality of blades are regularly arranged on a wheel disc in an inclined manner, and a plurality of tooth grooves are longitudinally and regularly arranged at the inner ends of the blades, so that the air quantity of the through-flow fan blade can be improved in unit time, the efficiency of the fan blade is improved, and noise generated during the operation of the fan blade is reduced to a certain extent.
Examples
The cross-flow fan shown in fig. 4-6 comprises a shell 5, a motor 6, a steel shaft disc 7, a rubber end disc 8 and a plurality of cross-flow wind wheels in the first embodiment, wherein an air channel is formed in the shell 5, an air inlet and an air outlet are respectively formed at two ends of the air channel, the motor 6 is arranged on the steel shaft disc 7, and the plurality of cross-flow wind wheels are connected between the steel shaft disc 7 and the rubber end disc 8 and are arranged in the air channel.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.
Claims (8)
1. The utility model provides a cross-flow wind wheel, includes rim plate (1) to and set up in rim plate (1) a plurality of blade (2) on the quotation of one side along same circumference, its characterized in that: the blades (2) are obliquely arranged on the wheel disc (1), and oblique air inlet/outlet channels are formed between the adjacent blades (2); the inner end edge of the blade (2) is provided with tooth grooves (3) at the inner side of the air inlet/outlet channel, and the tooth grooves (3) are longitudinally arranged in a plurality.
2. A cross flow wind wheel according to claim 1, wherein: the blades (2) are obliquely arranged on the wheel disc (1) regularly.
3. A cross flow wind wheel according to claim 2, wherein: the inclination angle of the blade (2) is 3-5 degrees.
4. A cross flow wind wheel according to claim 1, wherein: the tooth grooves (3) are longitudinally and regularly arranged at the inner ends of the blades (2).
5. A cross flow wind wheel according to claim 4, wherein: the cross section of each tooth groove (3) is square, and a wide wall (4) is formed between every two adjacent tooth grooves (3).
6. A cross-flow wind wheel according to claim 5, wherein: the slot length of the slot (3) is equal to the length of the wide wall (4).
7. A cross flow wind wheel according to claim 6, wherein: the cambered surface between the side wall and the bottom surface of the tooth groove (3) is in transition.
8. The utility model provides a through-flow fan, includes casing (5), motor (6), steel axle dish (7) and rubber end dish (8), is formed with the wind channel in casing (5), and air intake and air outlet are formed respectively at the both ends in wind channel, and motor (6) are installed on steel axle dish (7), its characterized in that: the cross-flow wind wheel comprises a plurality of cross-flow wind wheels as claimed in any one of claims 1-7, wherein the cross-flow wind wheels are connected between a steel shaft disc (7) and a rubber end disc (8) and are arranged in the air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321338316.2U CN219932519U (en) | 2023-05-29 | 2023-05-29 | Cross-flow wind wheel and cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321338316.2U CN219932519U (en) | 2023-05-29 | 2023-05-29 | Cross-flow wind wheel and cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219932519U true CN219932519U (en) | 2023-10-31 |
Family
ID=88503055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321338316.2U Active CN219932519U (en) | 2023-05-29 | 2023-05-29 | Cross-flow wind wheel and cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219932519U (en) |
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2023
- 2023-05-29 CN CN202321338316.2U patent/CN219932519U/en active Active
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